seed plants - paulding county school district / homepage flowers- contain sepals, petals, stamens,...
TRANSCRIPT
![Page 1: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/1.jpg)
Seed Plants
![Page 2: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/2.jpg)
1. A seed is an embryo with a food supply enclosed in a tough coat.
2. Seed plants don’t require water for fertilization due to pollen production
What is a seed?
3. There are 2 types of seed bearing plants-gymnosperms and angiosperms
![Page 3: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/3.jpg)
![Page 4: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/4.jpg)
a. Non flowering vascular plants
b. Example: conifer
1. Cone bearers: seeds found on scales of cone
2. Needle like leaves with tough cuticle
3. Shallow roots4. Bark to reduce water loss 5. Evergreens: retain leaves
all year6. Male cone produces pollen 7. female cone produces
seeds
4. Gymnosperms;
![Page 5: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/5.jpg)
5. Angiosperms: flower producing plants; most successful plant group on earth
Two groups: monocots & dicots
![Page 6: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/6.jpg)
1. Have one cotyledon: food storage organ of plant embryo
2. Parallel veins in leaves
3. Vascular bundles are scattered
4. Netlike roots
5. Examples - grasses, lilies, corn
a. Monocots
grasses
lilies
corn
![Page 7: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/7.jpg)
b. Dicots
1. Have 2 cotyledons2. Netlike veins3. Vascular bundles in a circle4. Taproots: anchor firmly in the ground5. Examples: oak , poplar, holly, daisies, and
roses
Oak
poplars
holly
roses
daisies
![Page 8: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/8.jpg)
Monocots – flower parts
in multiples of three
Dicots – 4 or 5 flower parts,
or multiples of 4 or 5
Classification by # of seed
leaves (cotyledons):
seeds sprout 1 leaf – monocot,
seeds sprout 2 leaves – dicot
![Page 9: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/9.jpg)
6. Life spans
a. annuals: live only 1 year, corn, wheat, peas
b. biennials- life span of 2 years, carrots, beets
c. perennials- life span of several years, leaves die back to soil, daylilies, hydrangea, shrubs, maple trees
![Page 10: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/10.jpg)
![Page 11: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/11.jpg)
Quiz 5
Put your notes away and get
ready for your quiz,
![Page 12: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/12.jpg)
Quiz 5
1. ____ is an embryo with food supply and tough coat.
a. spore b. seed c. sporangia
2. Cone bearers and evergreens are _________.
a. gymnosperms b. angiosperms c. gametosperm
3. Dicots have ___ cotyledons.
a. 2 b. 3 c. 5
4. Seeds that sprout one leaf (flower part mult of 3)?
a. dicot b. monocot c. neither
5. ___ are flowering plants.
a. angiosperms b. gymnosperms c. ferns
![Page 13: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/13.jpg)
Quiz 5
1. ____ is an embryo with food supply and tough coat.
a. spore b. seed c. sporangia
2. Cone bearers and evergreens are _________.
a. gymnosperms b. angiosperms c. gametosperm
3. Dicots have ___ cotyledons.
a. 2 b. 3 c. 5
4. Seeds that sprout one leaf (flower part mult of 3)?
a. dicot b. monocot c. neither
5. ___ are flowering plants.
a. angiosperms b. gymnosperms c. ferns
![Page 14: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/14.jpg)
JOURNAL #6
Compare /Contrast Monocot and Dicot.
Monocot Dicot
1 cotyldon 2 cotyldon
Veins parallel Veins netlike
Vascular bundle scattered VB centered
Fibrous roots taproot
Mult of threes Mult 4 or 5
![Page 15: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/15.jpg)
FlowersFlowers
![Page 16: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/16.jpg)
1. Functions- reproductive organ of the plant
2. Structures-
a. petals- colored portion of the flower
b. Sepals- outermost portion of the flower
Flowers are colorful to attract pollinators such as
insects and birds
![Page 17: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/17.jpg)
C. Female parts-Pistil
1. Stigma- sticky top of pistil for pollen to be deposited
2. Style- stalk connecting stigma to ovary
3. Ovary- contains ovule, where eggs are found
4. Ovule- will become seeds if fertilized
![Page 18: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/18.jpg)
D. Male parts- Stamen
1. Anther- top of stamen, releases pollen
2. Filament- stalk attaching anther to stem
![Page 19: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/19.jpg)
Complete flowers- contain sepals, petals, stamens, and pistils
Incomplete flowers-lacking 1 or more organs, may have separately sexed flowers
![Page 20: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/20.jpg)
Pollination- transfer of pollen from one plant to another
a. Transferred by animals: usually brightly colored flowers, produce nectar, sweet smell
b. Wind
c. water
![Page 21: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/21.jpg)
Reproduction:
a. Pollen grain reaches stigma, each has 2 haploid sperms cells & tube cell
b. Tube cell forms tube into ovary
c. Double fertilization occurs
d. After fertilization, flower parts die & seed develops
![Page 22: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/22.jpg)
Haploid (N)
Diploid (2N)
MEIOSIS
FERTILIZATION
Section 24-1
Figure 24–7 The Life Cycle of
an Angiosperm
Ovule
Anther (2N) Pollen grains (N)
(male gametophyte)
Pollen
tubes
Haploid cell
(N)
Embryo sac (N)(female gametophyte)
Egg cell
Sperm
Pollen tubeEndosperm nuclei
Endosperm(3N)
Zygote
(2N)FruitSeed coat
Endosperm
Embryo
(2N)Seedling (2N)
(new sporophyte)
Mature
sporophyte
Ovary
Style
Stigma
![Page 23: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/23.jpg)
Describe Fruits
1. A fruit is a ripened ovary containing seeds, protect seed while developing
2. Types:
a. Simple- formed from single ovary: examples: apple, pear
![Page 24: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/24.jpg)
b. aggregate:- formed from flowers with many ovaries; example: blackberry
c. Multiple: formed from many fused flowers; examples: pineapple
![Page 25: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/25.jpg)
Describe Seeds
1. Function to start new generations
2. Dispersal by animals(eat fruits & seeds), wind, water
A seed is a baby with its’ own food supply enclosed in a tough protective coating
![Page 26: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/26.jpg)
Germination: resuming growth of seedsa. Seed coat splits b. cotyledon provides energy source for growth c. radicle is first plant part to emerge, grows down, & develops into primary root d. hypocotyl lengthens as root growse. as growth continues, cotyledon & hypocotyl emerge from soilf. leaves & stems eventually turns green & begins to photosynthesize
![Page 27: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/27.jpg)
Quiz 6
Put your notes away and get
ready for your quiz,
![Page 28: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/28.jpg)
Quiz #6 Flowers
1. The stigma, style and ovary make up the ________ of a
flower.
A. pistil B. stamen C. gametes D. sepals
2. Pollination can occur by:
A. animals B. water C. both of these D. none
3. Identify this flower as either complete or incomplete
A. complete
B. incomplete
![Page 29: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/29.jpg)
4. ________ occurs when a pollen grain reaches an
ovary.
A. mitosis B. ovulation C. meiosis D. fertilization
5. This is called:
A. Fertilization
B. stigmation
C. germination & growth
D. angiofertilization
![Page 30: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/30.jpg)
Quiz #6 Flowers
1. The stigma, style and ovary make up the ________ of a
flower.
A. pistil B. stamen C. gametes D. sepals
2. Pollination can occur by:
A. animals B. water C. both of these D. none
3. Identify this flower as either complete or incomplete
A. complete
B. incomplete
![Page 31: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/31.jpg)
4. ________ occurs when a pollen grain reaches an
ovary.
A. mitosis B. ovulation C. meiosis D. fertilization
5. This is called:
A. Fertilization
B. stigmation
C. germination & growth
D. angiofertilization
![Page 32: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/32.jpg)
JOURNAL #7
Explain three ways that plants are beneficial to life on Earth. Use your own paper for this answer.
1. Oxygen exchange
2. Food Source
3. Building Supplies
4. Pencils
5. Paper, etc.
![Page 33: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/33.jpg)
Asexual Reproduction
in Plants
![Page 34: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/34.jpg)
1. offspring will have same genes as
parents
2. Vegetative propagation:
a. producing new individuals from
roots, stems, or leaves of existing
plants
b. Examples:
1. Runners- modified
stems that grow along
the top of the ground &
send out their own roots.
Strawberries
![Page 35: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/35.jpg)
2. Rhizomes- modified
stems that grow under
the soil, produce new
roots from stem.
Ex- grasses
3. Tubers- shorter,
thicker stems that
produce an “eye” which
is capable of producing
a new plant.
Ex-Potato
![Page 36: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/36.jpg)
4. Bulbs- stem covered
with modified leaves
which can produce a new
plant. Onion
5. Food storing roots-
carrots & beets are
roots which are
capable of producing a
new plant.
![Page 37: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/37.jpg)
3. Artificial Propagation-
a. Method of asexual reproduction most
used in agriculture
b. cuttings- pieces of stem cut from parent
kept in water, moist soil or sand will put
out new roots. Example- many garden
plants
![Page 38: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/38.jpg)
c. Grafting- buds or
sections are cut from
one plant & attached to
another that is already
rooted in the soil.
Ex- roses, fruit trees, &
grapes
d. Tissue culture- pieces of
the center of stem are
removed & placed in flasks
with growth medium from
which a whole new plant
will develop
![Page 39: Seed Plants - Paulding County School District / Homepage flowers- contain sepals, petals, stamens, and pistils Incomplete flowers-lacking 1 or more organs, may have separately sexed](https://reader031.vdocuments.mx/reader031/viewer/2022022005/5ab6f4527f8b9a156d8e5dc1/html5/thumbnails/39.jpg)
Quiz 7
Haaa, just kidding!
Hang in there! We are almost done